"PB glasses" likely refers to lead glasses, which are protective eyewear used to shield the eyes from X-rays and other types of radiation.
How Lead Glasses Work
Lead glasses protect against radiation using the element lead (Pb). Here's a breakdown:
- High Atomic Mass: Lead has a high atomic mass (207), which is significantly greater than elements like carbon (12) or calcium (40).
- Radiation Blocking: According to provided reference, radiation waves can easily pass through lighter elements like carbon and calcium but are stopped in their tracks by the heavyweight of lead. This high atomic mass is key to blocking X-rays.
- Stopping Power: The lead atoms in the glasses effectively stop the radiation from reaching the eyes.
Key Features of Lead Glasses
| Feature | Description |
|---|---|
| Material | Special glass containing lead. |
| Protection Level | Designed to attenuate (reduce the intensity of) X-rays and other forms of radiation. |
| Purpose | To protect the eyes of medical professionals, dentists, veterinarians, and patients during radiological procedures. |
